I don't understand what you are saying. How does a lack of storyline material, presumable so there can be online serial content, and dynamic storyline developments be a good indication that the Bionicle saga will end?
I think that when Bionicle ends, we will have a satisfying ending, and a happy ending, and no major loose ends in plot. I hope LEGO does not, however, just say "and oh 'this' is fixed and 'this' is fixed, all done" and leave us feeling empty even though it didn't end like KK or E-F.
I also feel that with us just having seen Bara Magna this year, and there being those environments that Mata Nui and Kiina discovered, that there is still some story to get out of Bionicle instead of just ending it now. (In other words, I think we can go on for a few more years, get almost equal time out of Bara Magna that we got from the MU (though lack of elements are disappointing to me), but ultimately I guess that's for LEGO to decide.)
-CF
Note the phrase if an end to the line even occurs. I'm not saying it's evidence that the line will end in 2010; I'm saying that assuming the line will end in 2010, then this could be seen as evidence that the end will be satisfactory.
I thought whether or not something is satisfactory was an opinion.